2 * linux/arch/arm/mach-omap2/board-omap3touchbook.c
4 * Copyright (C) 2009 Always Innovating
6 * Modified from mach-omap2/board-omap3beagleboard.c
8 * Initial code: Grégoire Gentil, Tim Yamin
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/err.h>
20 #include <linux/clk.h>
22 #include <linux/leds.h>
23 #include <linux/gpio.h>
24 #include <linux/input.h>
25 #include <linux/gpio_keys.h>
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/mtd/nand.h>
30 #include <linux/mmc/host.h>
32 #include <plat/mcspi.h>
33 #include <linux/spi/spi.h>
35 #include <linux/spi/ads7846.h>
37 #include <linux/regulator/machine.h>
38 #include <linux/i2c/twl.h>
40 #include <mach/hardware.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/flash.h>
45 #include <asm/system_info.h>
47 #include <plat/board.h>
49 #include <plat/gpmc.h>
50 #include <plat/nand.h>
55 #include "common-board-devices.h"
57 #include <asm/setup.h>
59 #define OMAP3_AC_GPIO 136
60 #define OMAP3_TS_GPIO 162
61 #define TB_BL_PWM_TIMER 9
62 #define TB_KILL_POWER_GPIO 168
64 static unsigned long touchbook_revision
;
66 static struct mtd_partition omap3touchbook_nand_partitions
[] = {
67 /* All the partition sizes are listed in terms of NAND block size */
71 .size
= 4 * NAND_BLOCK_SIZE
,
72 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
76 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
77 .size
= 15 * NAND_BLOCK_SIZE
,
78 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
82 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
83 .size
= 1 * NAND_BLOCK_SIZE
,
87 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
88 .size
= 32 * NAND_BLOCK_SIZE
,
91 .name
= "File System",
92 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
93 .size
= MTDPART_SIZ_FULL
,
97 #include "sdram-micron-mt46h32m32lf-6.h"
99 static struct omap2_hsmmc_info mmc
[] = {
102 .caps
= MMC_CAP_4_BIT_DATA
| MMC_CAP_8_BIT_DATA
,
109 static struct regulator_consumer_supply touchbook_vmmc1_supply
[] = {
110 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
113 static struct regulator_consumer_supply touchbook_vsim_supply
[] = {
114 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
117 static struct gpio_led gpio_leds
[];
119 static int touchbook_twl_gpio_setup(struct device
*dev
,
120 unsigned gpio
, unsigned ngpio
)
122 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
123 mmc
[0].gpio_cd
= gpio
+ 0;
124 omap_hsmmc_late_init(mmc
);
126 /* REVISIT: need ehci-omap hooks for external VBUS
127 * power switch and overcurrent detect
129 gpio_request_one(gpio
+ 1, GPIOF_IN
, "EHCI_nOC");
131 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
132 gpio_request_one(gpio
+ TWL4030_GPIO_MAX
, GPIOF_OUT_INIT_LOW
,
135 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
136 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
141 static struct twl4030_gpio_platform_data touchbook_gpio_data
= {
142 .gpio_base
= OMAP_MAX_GPIO_LINES
,
143 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
144 .irq_end
= TWL4030_GPIO_IRQ_END
,
147 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
148 | BIT(15) | BIT(16) | BIT(17),
149 .setup
= touchbook_twl_gpio_setup
,
152 static struct regulator_consumer_supply touchbook_vdac_supply
[] = {
158 static struct regulator_consumer_supply touchbook_vdvi_supply
[] = {
164 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
165 static struct regulator_init_data touchbook_vmmc1
= {
169 .valid_modes_mask
= REGULATOR_MODE_NORMAL
170 | REGULATOR_MODE_STANDBY
,
171 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
172 | REGULATOR_CHANGE_MODE
173 | REGULATOR_CHANGE_STATUS
,
175 .num_consumer_supplies
= ARRAY_SIZE(touchbook_vmmc1_supply
),
176 .consumer_supplies
= touchbook_vmmc1_supply
,
179 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
180 static struct regulator_init_data touchbook_vsim
= {
184 .valid_modes_mask
= REGULATOR_MODE_NORMAL
185 | REGULATOR_MODE_STANDBY
,
186 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
187 | REGULATOR_CHANGE_MODE
188 | REGULATOR_CHANGE_STATUS
,
190 .num_consumer_supplies
= ARRAY_SIZE(touchbook_vsim_supply
),
191 .consumer_supplies
= touchbook_vsim_supply
,
194 static struct twl4030_platform_data touchbook_twldata
= {
195 /* platform_data for children goes here */
196 .gpio
= &touchbook_gpio_data
,
197 .vmmc1
= &touchbook_vmmc1
,
198 .vsim
= &touchbook_vsim
,
201 static struct i2c_board_info __initdata touchBook_i2c_boardinfo
[] = {
203 I2C_BOARD_INFO("bq27200", 0x55),
207 static int __init
omap3_touchbook_i2c_init(void)
209 /* Standard TouchBook bus */
210 omap3_pmic_get_config(&touchbook_twldata
,
211 TWL_COMMON_PDATA_USB
| TWL_COMMON_PDATA_AUDIO
,
212 TWL_COMMON_REGULATOR_VDAC
| TWL_COMMON_REGULATOR_VPLL2
);
214 touchbook_twldata
.vdac
->num_consumer_supplies
=
215 ARRAY_SIZE(touchbook_vdac_supply
);
216 touchbook_twldata
.vdac
->consumer_supplies
= touchbook_vdac_supply
;
218 touchbook_twldata
.vpll2
->constraints
.name
= "VDVI";
219 touchbook_twldata
.vpll2
->num_consumer_supplies
=
220 ARRAY_SIZE(touchbook_vdvi_supply
);
221 touchbook_twldata
.vpll2
->consumer_supplies
= touchbook_vdvi_supply
;
223 omap3_pmic_init("twl4030", &touchbook_twldata
);
224 /* Additional TouchBook bus */
225 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo
,
226 ARRAY_SIZE(touchBook_i2c_boardinfo
));
231 static struct ads7846_platform_data ads7846_pdata
= {
241 .gpio_pendown
= OMAP3_TS_GPIO
,
245 static struct gpio_led gpio_leds
[] = {
247 .name
= "touchbook::usr0",
248 .default_trigger
= "heartbeat",
252 .name
= "touchbook::usr1",
253 .default_trigger
= "mmc0",
257 .name
= "touchbook::pmu_stat",
258 .gpio
= -EINVAL
, /* gets replaced */
263 static struct gpio_led_platform_data gpio_led_info
= {
265 .num_leds
= ARRAY_SIZE(gpio_leds
),
268 static struct platform_device leds_gpio
= {
272 .platform_data
= &gpio_led_info
,
276 static struct gpio_keys_button gpio_buttons
[] = {
291 static struct gpio_keys_platform_data gpio_key_info
= {
292 .buttons
= gpio_buttons
,
293 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
296 static struct platform_device keys_gpio
= {
300 .platform_data
= &gpio_key_info
,
304 #ifdef CONFIG_OMAP_MUX
305 static struct omap_board_mux board_mux
[] __initdata
= {
306 { .reg_offset
= OMAP_MUX_TERMINATOR
},
310 static struct platform_device
*omap3_touchbook_devices
[] __initdata
= {
315 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
317 .port_mode
[0] = OMAP_EHCI_PORT_MODE_PHY
,
318 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
319 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
322 .reset_gpio_port
[0] = -EINVAL
,
323 .reset_gpio_port
[1] = 147,
324 .reset_gpio_port
[2] = -EINVAL
327 static void omap3_touchbook_poweroff(void)
329 int pwr_off
= TB_KILL_POWER_GPIO
;
331 if (gpio_request_one(pwr_off
, GPIOF_OUT_INIT_LOW
, "DVI reset") < 0)
332 printk(KERN_ERR
"Unable to get kill power GPIO\n");
335 static int __init
early_touchbook_revision(char *p
)
340 return strict_strtoul(p
, 10, &touchbook_revision
);
342 early_param("tbr", early_touchbook_revision
);
344 static void __init
omap3_touchbook_init(void)
346 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
348 pm_power_off
= omap3_touchbook_poweroff
;
350 if (system_rev
>= 0x20 && system_rev
<= 0x34301000) {
351 omap_mux_init_gpio(23, OMAP_PIN_INPUT
);
354 omap_mux_init_gpio(29, OMAP_PIN_INPUT
);
356 omap_hsmmc_init(mmc
);
358 omap3_touchbook_i2c_init();
359 platform_add_devices(omap3_touchbook_devices
,
360 ARRAY_SIZE(omap3_touchbook_devices
));
362 omap_sdrc_init(mt46h32m32lf6_sdrc_params
,
363 mt46h32m32lf6_sdrc_params
);
365 omap_mux_init_gpio(170, OMAP_PIN_INPUT
);
366 /* REVISIT leave DVI powered down until it's needed ... */
367 gpio_request_one(176, GPIOF_OUT_INIT_HIGH
, "DVI_nPD");
369 /* Touchscreen and accelerometer */
370 omap_ads7846_init(4, OMAP3_TS_GPIO
, 310, &ads7846_pdata
);
372 usbhs_init(&usbhs_bdata
);
373 omap_nand_flash_init(NAND_BUSWIDTH_16
, omap3touchbook_nand_partitions
,
374 ARRAY_SIZE(omap3touchbook_nand_partitions
));
376 /* Ensure SDRC pins are mux'd for self-refresh */
377 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
378 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT
);
381 MACHINE_START(TOUCHBOOK
, "OMAP3 touchbook Board")
382 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
383 .atag_offset
= 0x100,
384 .reserve
= omap_reserve
,
385 .map_io
= omap3_map_io
,
386 .init_early
= omap3430_init_early
,
387 .init_irq
= omap3_init_irq
,
388 .handle_irq
= omap3_intc_handle_irq
,
389 .init_machine
= omap3_touchbook_init
,
390 .init_late
= omap3430_init_late
,
391 .timer
= &omap3_secure_timer
,
392 .restart
= omap_prcm_restart
,